The mesomorph will have NO problem puting on mass. Unfortunately that means in muscle and in fat. If a mesomorph isn't careful, they can easily become overweight by taking in too many calories from high-fat foods. They typically store fat equally in most areas of their bodies.
The great thing is that as easy as it is for a mesomorph to put on the weight, with hard work and a change in their diet, they can easily take off unwanted weight. Their muscles are a huge benefit as they are thick and powerful and require the use of more calories to maintain.
DIET for the MESOMORPH
Carbohydrates are a bit trickier with mesomorphs. While it is important to have carbs and it will ultimately fuel your body especially after a workout, it is important to know just what kind of cards to take in. It is recommended that a mesomorph body type eat slower absorbing carbs, such as yams, brown rice and other vegetables. It's also a good idea to mix up their carb choices, rotating between fruits, vegetables and whole grains. Another important factor while consuming carbs is to focus on FIBER rich foods. Things like quinoa, and other whole grains will be a huge benefit.
Mesomorphs should avoid foods that are high in sugar as they can lead to quick weight gain if consumed too often. It is especially important to stay away from carbohydrates that are high in sugar.
You want to make sure you are incorporating a decent amount of healthy fats and oils. Flax seed oil and olive oil are great choices. Avocados and other omega 3's are also extremely beneficial to the mesomorph body type.
The mesomorph will benefit from eating 5-7 small meals a day to keep their metabolism high. By eating a balance of 40% carbs, 30% fat and 30% protein, a mesomorph will be able to reach their body type's full potential.
EXERCISE for the MESOMORPH
The best strategy for a mesomorph is to incorporate a variety of workouts throughout the week. It's recommended that a mesomorph workout about 5 times a week for about 30-45 minutes. Rotating between High Intensity Interval Training (HIIT) Workouts and steady state cardio is optimum.
When weight training it's best to use moderate to heavy weights. Limited rest between sets is important to continue to strengthen and train the muscles. Circuit training or a boot-camp style workout is a great way to accomplish this.
Changing up the intensity of a workout will continue to challenge the muscles in a mesomorph body type. This includes incorporating things like yoga or Pilates at least one day a week.